Department of Orthopaedic Surgery, Ng Teng Fong General Hospital, Singapore.
Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
J Hand Surg Eur Vol. 2019 Dec;44(10):1008-1012. doi: 10.1177/1753193419865894. Epub 2019 Aug 9.
We investigated the maximal advancement of the homodigital neurovascular island flap with the digit in full extension and its correlation to the digital length. In 32 adult cadaveric digits, flaps measuring 1 × 1 cm were sequentially elevated to different dissection points. Dissection of the flap to the proximal interphalangeal joint crease, palmo-digital crease, division of adjacent digital artery and the superficial arch resulted in flap advancement of 8, 12, 15 and 18 mm, respectively. The degree of advancement correlated to the length of the finger and was approximately 19% of the finger length. We conclude that dissection of a homodigital antegrade neurovascular island flap to the proximal interphalangeal joint, palmo-digital crease, after ligation of adjacent digital artery and the superficial arch allows progressively more advancement. The advancement obtained by flap dissection to the palmo-digital crease was about 19% of the finger length.
我们研究了同指神经血管岛状皮瓣在手指完全伸展时的最大推进程度及其与手指长度的关系。在 32 个成人尸体手指中，依次将 1×1cm 的皮瓣提升到不同的解剖点。将皮瓣解剖至近节指间关节皱褶、掌指关节皱褶、相邻指动脉和浅弓的分支处，可使皮瓣分别推进 8、12、15 和 18mm。推进程度与手指长度相关，约为手指长度的 19%。我们得出结论，将同指顺行神经血管岛状皮瓣解剖至近节指间关节、掌指关节皱褶、结扎相邻指动脉和浅弓后，可逐渐增加推进程度。通过皮瓣解剖至掌指关节皱褶可获得约 19%的手指长度推进。
